Move nuget push to VSTS (#31)

Author: formulahendry

.travis.yml

@@ -15,13 +15,4 @@ deploy:
   file_glob: true
   file: "*.nupkg"
   on:
-    tags: true
-- provider: script
-  skip_cleanup: true
-  script: mono .nuget/nuget.exe push *.nupkg $api_key -Source https://www.nuget.org/api/v2/package
-  on:
-    tags: true
-    condition: "$TRAVIS_TAG =~ $ISPRODTAG"
-env:
-  global:
-  - ISPRODTAG=^v?[0-9]+\.[0-9]+\.[0-9]+$
+    tags: true